User manual PLEXTOR ULTRACOV

[. . . ] For caddy loading, continue reading below. Caddy Loading Plextor's CD-ROM drives use an industry-standard disc caddy to protect the disc from scratches and contamination. A standard caddy is made of plastic and has a metal shutter on its bottom which slides open and shut. Plextor is also constantly evaluating other caddy designs for possible use in the future. Unless provided or recommended by Plextor, use of a non-standard caddy (e. g. , one that lacks a metal shutter on its bottom) is not recommended. [. . . ] See Chapter 13 for information on how to prepare for, and then make contact with, Plextor's technical support staff. ULTRAPLEX OPERATION MANUAL 47 CHAPTER 12 ---- Troubleshooting 12. 1 PC Compatibles: Initial Installation Symptoms · No sound when running a CD-ROM program Additional Symptom No sound when playing an audio CD Possible Causes and Solutions Application Does Not Use CD-Audio There are two types of audio you may encounter when using CD-ROMs: 1) Sound Card Audio: This comes from data (e. g. , . WAV or . MID files) that is transferred from your CD-ROM disc via the SCSI host adapter into your computer and is translated by your soundboard into sound. If you do not have a soundboard, you will not be able to hear this form of audio. 2) CD Audio: This comes from audio discs (like the ones used by your home stereo) that are translated directly by your CD-ROM drive into sound. You do not need a soundboard to hear this audio. You can hear this audio by plugging a set of headphones or powered speakers into the headphone jack on the front of your drive. One reason, then, that you might not hear sound when playing a CD-ROM disc is that a soundboard is required. These discs use only sound card audio, not CD Audio. To help you determine if you are having a soundboard problem, or a CD Audio problem, try playing an audio CD in your CD-ROM drive. If you can hear music (through headphones or speakers connected to the headphone jack on the front of your drive), the CD-ROM disc you are playing may require the use of a soundboard in order to hear sound. If possible, check the manual that came with the CD-ROM disc and see if the use of a soundboard is recommended or required. If you have a soundboard and can hear an audio CD when it is played but cannot hear sound when you play a CD-ROM disc, you may have configured your soundboard incorrectly. Inspect the interface board where it seats into the connector on your computer's motherboard. There should not be more than a small gap between the interface board and the connector. ULTRAPLEX OPERATION MANUAL 51 CHAPTER 12 ---- Troubleshooting Symptom · Incorrect DOS Version Possible Causes and Solutions Conflict Between MS-DOS 5. 0 and Microsoft's CD-ROM Extensions Version 2. 2 (or Lower) MS-DOS 5. 0 users should use Microsoft's CD-ROM Extensions (file name MSCDEX. EXE) Version 2. 21 or 2. 22. If you do not have either of these versions and plan to use DOS 5. 0 with MSCDEX. EXE Ver 2. 2 (or lower), you can resolve this conflict by doing the following: 1) Type the following line into your CONFIG. SYS file: DEVICE=C:\DOS\SETVER. EXE 2) Switch to the DOS prompt. 3) Type the following: SETVER MSCDEX. EXE 4. 01, then press the Enter key. Conflict Between MS-DOS 6. 0 and Microsoft's CD-ROM Extensions (file name: MSCDEX. EXE) Version 2. 21 (or Lower) MSCDEX. EXE ver. 2. 22 (or higher) must be used with DOS 6. 0. Use of an earlier version will result in an INCORRECT DOS VERSION message. You can find this file in your C:\DOS directory. If you previously had loaded MSCDEX. EXE ver. 2. 21 (or lower), your computer might still be recognizing this lower version rather than 2. 22 (or higher). To correct this problem, you must edit your AUTOEXEC. BAT file using a text editor or word processor. [. . . ] If a ribbon cable is used, inspect for any signs of distress, such as kinking. Symptom · CDR103----Not High Sierra Format Additional Symptom Occurs with Certain Discs Only Possible Cause and Solution Incorrect Disc The disc might be intended for another type of computer, such as a Macintosh or Sun, or it is not mastered in the High Sierra or ISO 9660 formats. 56 ULTRAPLEX OPERATION MANUAL CHAPTER 12 ---- Troubleshooting Symptom · CDR103----Not High Sierra Format Additional Symptom Occurs Regardless of the Discs Used Possible Causes and Solutions Incorrect Jumper Setting You might have the block jumper set to ON. Hardware Conflict If the SCSI interface board uses DMA channels, try changing the selected DMA channel. See the instruction manual for your SCSI interface board. Memory Manager Conflict If the SCSI interface board uses memory-mapped addressing or has a BIOS, exclude the addresses from the memory manager. [. . . ]